Racket version 8.11 is now available from https://download.racket-lang.org/
raco pkg migrate 8.10 to update your packages
As of this release:
Match clauses can include a #:do option to allow evaluation of code and bindings before a following #:when clause. See
JSON Serialization supports indentation with an #:indent option to
initiate-sequencefunction simplifies the creation of sequences. See
:do-inform allows an inner definition sequence. See
redex-defineform allows pattern-matching in PLT Redex using a
define-like syntax. See
Racket and Chez Scheme use Robert L. Smith's "Algorithm 116" for division of complex numbers. See Robert L. Smith. 1962. Algorithm 116: Complex division. Commun. ACM 5, 8 (Aug. 1962), 435.
DrRacket has indentation guides that provide visual cues indicating how code is indented and grouped, accessible by using (<menu-key>-shift-i). See
"Comment-out" menu items can be specific to the #lang used by the current file. See Comments.
Unused identifiers have a tooltip indicating that they have no bound occurrences.
Quickscript includes a new form of scripting in the form of "hook" functions that can be attached to existing events. See Hooks.
plot-legend-paddingparameters to control the amount of space left unused around the plot edge and plot legend. See
There are many other documentation improvements, optimizations, and bug fixes!
Thank you to the people who contributed to this release:
Alex Harsányi, Ben Greenman, Bogdan Popa, Cameron Moy, Camille d’Alméras, D. Ben Knoble, Efraim Flashner, Eric S. Raymond, Fred Fu, Greg Hendershott, Gustavo Massaccesi, Jay McCarthy, jim, Joel Dueck, John Clements, Jon Eskin, Laurent Orseau, Lucas Sta Maria, mAdkins, Mark Hedlund, Matteo d’Addio, Matthew Flatt, Matthias Felleisen, Mike Sperber, Noah Ma, Oscar Waddell, Philip McGrath, Qifan Wang, Robby Findler, Ross Angle, Ryan Culpepper, Sam Tobin-Hochstadt, shenleban tongying, Shu-Hung You, Sorawee Porncharoenwase, Stephen De Gabrielle, Wing Hei Chan, xxyzz, and ZhangHao